/Engine/Source/Editor/DataLayerEditor/Public/DataLayer/DataLayerEditorSubsystem.h
Remove the actors from the DataLayers
true if at least one actor was removed from at least one DataLayer. false is returned if none of the actors belonged to any of the specified DataLayers.
bool RemoveActorsFromDataLayers ( const [TArray](API\Runtime\Core\Containers\TArray)< [AActor](API\Runtime\Engine\GameFramework\AActor) * > & Actors, const [TArray](API\Runtime\Core\Containers\TArray)< [UDataLayerInstance](API\Runtime\Engine\WorldPartition\DataLayer\UDataLayerInstance) * > & DataLayers )